Chain of custody receipt

Source #3388

Cryptographic attestation that the document below was captured in Goblin House's archive at the timestamp shown, with the hash listed. If the original URL goes dark or its content changes, this receipt remains as evidence of what the public record looked like at capture time.

TitleNextgov reporting on SEC contracts
Original URLhttps://github.com/datasets/edgar
PublicationDirected Inquiry — Web Search
Source typeweb_search
Date2016-01-01
EntitySapient Government Services
Captured2026-04-09T14:17:10.331Z UTC
Hash computed at2026-04-09T14:17:10.331Z UTC
SHA-25653649be277fdfd0b17bcd9fbd498fe7fbdc8c6894a2a7990b2e68a1fcb992852
Content length154 bytes
Content preview (first 800 chars) 
SEC awarded $6.1 million contract to Sapient Government Services in 2016 to gather requirements for EDGAR redesign with target procurement date early 2019

Verifying this receipt

The hash above was computed as:

sha256( coalesce(url, '<no-url>') || '\n' || raw_content )

Anyone with a copy of the original document can verify the match:

  1. Take the URL field and the original document content.
  2. Concatenate url + '\n' + content and SHA-256 it.
  3. Compare to the SHA-256 row above.

Or POST the candidate content to /source/3388/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/3388/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/3388/receipt.json